What on Earth?

Season 12 Episode 9: Secrets of Biosphere 2

Satellite images capture a mysterious group of pyramid-shaped structures in the arid, desert landscape of Arizona; experts investigate a highly controversial research facility designed to prepare humanity for life on another world.

Genre:

Documentary

Seasons:

12

Episodes:

131

Actor:

Steven Kearney, Andrew Gough

Quality:

HD

Status:

Returning Series

First Air:

2015

IMDb:

6.4